This CD contains the images of the original pages along with a full text search capability for the following book: History of Northwestern Pennsylvania Comprising the Counties of Erie, Crawford, Mercer, Venango, Warren, Forest, Clarion, McKean, Elk, Jefferson, Cameron, and Clearfield, Volumes I, II, and III (Joseph Riesenman, Jr., 1943). (CD. Retrospect Pub., 2002.)